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Finding the Fourth Proportional to 471,502.80, 706,793.40 and 421,736.40

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Solution

The fourth proportional to 471,502.80, 706,793.40 and 421,736.40 is: 632,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,502.80 : 706,793.40 = 421,736.40 : x
  2. Step 2: Convert to fraction form
    471,502.80/706,793.40 = 421,736.40/x
  3. Step 3: Cross multiply
    471,502.80x = 706,793.40 × 421,736.40
  4. Step 4: Simplify right side
    471,502.80x = 298,080,504,059.76
  5. Step 5: Solve for x
    x = 298,080,504,059.76/471,502.80
  6. Step 6: Final answer
    x = 632,192.44

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